Sit up exercise support



FIG. 1 is a front view of a sit up exercise support showing my newdesign, a back view being identical;

FIG. 2 is a left side view of the sit up exercise support, a right sideview being identical;

FIG. 3 is a top view of the sit up exercise support;

FIG. 4 is a bottom view of the sit up exercise support; and,

FIG. 5 is a top front right side perspective view of the sit up exercisesupport.

CLAIM The ornamental design for a sit up exercise support, as shown anddescribed.